Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
  • A01K1/00—Housing animals; Equipment therefor
  • A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
  • A01K1/0152—Litter
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
  • A01K1/00—Housing animals; Equipment therefor
  • A01K1/015—Floor coverings, e.g. bedding-down sheets ; Stable floors
  • A01K1/0152—Litter
  • A01K1/0154—Litter comprising inorganic material

Definitions

• the invention relates to animal litter or bedding material, produced from or in conjunction with a porous material, together with a process for the production thereof.
• DAS No. 2,902,079 discloses such an animal litter, in whose production porous material with a porous structure is used.
• the porous matrial used therein is a calcium silicate granular material having a pH value of generally 8.7 to 10.
• the known animal litter made from calcium silicate granular material with a pore radius of less than 500 nm is stable as regards shape and consistency and has a bactericidal action.
• the problem of the invention is therefore to improve known animal litter materials in such a way that it is possible to prevent undesired smells which occur even when such materials have been used for a short time, and as a result permit a longer use of the litter.
• this problem is solved by a porous material, whose pH value is between approximately 5.0 and approximately 9.0, preferably between approximately 5.8 to 6.2.
• the invention also relates to a process for producing such a material in which the porous material is treated with a gaseous or liquid acid substance.
• porous materials such as e.g. clays and the like can also be used. It is also possible to add to the animal litter according to the invention further deodorants, perfume oils and the like.
• colour indicator systems which indicate the decline in effectiveness of the material.
• the animal litter according to the invention was produced by using as the starting material commercial alumina with a particle size between 2 to 5 mm, conveyed by a conveyor belt in uniform quantity to an oblique proportioning screw. A solution of phosphoric acid was sprayed onto the surface of the alumina particles at the transition point from the conveyor belt to the proportioning screw using a spray nozzle system during the free fall of the product.
• a uniform wetting of the carrier material surface resulted from the rotary movement of the proportioning screw.
• the quantity to be sprayed on it is adjusted by continuous control of the pH value in the finished product, so that the pH value is in the range between approximately 5 and approximately 7.
• the product is then dried in a rotary drier to a residual moisture content of less than 10%, whilst setting a drying temperature of approximately 210° C.
• a non-tacky, dry, odourless product is obtained having good absorption characteristics, particularly for cat's urine.
• the thus produced calcium silicate granular material is crushed to a particle size between approximately 2 and 5 mm, screened and dedusted.
• the thus produced calcium silicate particles are conveyed by means of a conveyor belt in uniform manner to an oblique proportioning screw (obliquity approximately 40%).
• An acid solution is sprayed onto the surface of the calcium silicate particles by means of a spray nozzle at the transition point from the conveyor belt to the proportioning screw.
• the spraying solution consists of 31% by weight of a 95% phosphoric acid solution mixed with 69% by weight of an aluminum sulphate solution having a density of 1.30 to 1.34 and a pH value between 2 and 3.5.
• the quantity of liquid to be sprayed on is regulated by continuous control of the end product, so that the latter has a pH value between 5.8 and 6.2.
• the treated granular material After passing through the proportioning screw, in which the surface of the calcium silicate particles is uniformly wetted, the treated granular material is transferred into a rotary drier. At a drying temperature of approximately 210° C., drying takes place to an end product residual moisture content of less than 10%.
• the thus produced, treated calcium silicate granular material has superior properties, particularly with respect to cat's urine compared with known animal litter materials.
• acidify such substances by treating with acid gases, e.g. sulphur trioxide, hydrochloric acid gas or other acids in gaseous form, which can optionally be carried out particularly inexpensively when such acid gases are available from other chemical processes.
• acid gases e.g. sulphur trioxide, hydrochloric acid gas or other acids in gaseous form

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Environmental Sciences (AREA)
• Zoology (AREA)
• Animal Husbandry (AREA)
• Biodiversity & Conservation Biology (AREA)
• Inorganic Chemistry (AREA)
• Chemical & Material Sciences (AREA)
• Housing For Livestock And Birds (AREA)
• Peptides Or Proteins (AREA)
• Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
• Catching Or Destruction (AREA)
• Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
• Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6133514

Family Applications (1)

Country Status (10)

Cited By (13)

Families Citing this family (8)

Citations (7)

Family Cites Families (11)

• 1981
  • 1981-05-29 DE DE3121403A patent/DE3121403C2/de not_active Expired - Lifetime
• 1982
  • 1982-05-08 DE DE8282104009T patent/DE3270216D1/de not_active Expired
  • 1982-05-08 EP EP82104009A patent/EP0066116B2/de not_active Expired - Lifetime
  • 1982-05-08 AT AT82104009T patent/ATE18845T1/de not_active IP Right Cessation
  • 1982-05-20 CA CA000403397A patent/CA1198889A/en not_active Expired
  • 1982-05-25 DK DK234882A patent/DK153272C/da not_active IP Right Cessation
  • 1982-05-26 JP JP57089576A patent/JPS5823733A/ja active Granted
  • 1982-05-26 AU AU84181/82A patent/AU564573B2/en not_active Expired
  • 1982-05-28 US US06/383,010 patent/US4509457A/en not_active Expired - Lifetime
  • 1982-05-28 NO NO821796A patent/NO154031C/no unknown
  • 1982-05-28 ES ES512664A patent/ES8400848A1/es not_active Expired

Patent Citations (7)

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